[Jasper109]

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It doesn't say for what point in time you want the final velocity even though it mentions that it takes 10s to hit the water.

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no [censored]!

but it becomes obvious as soon as you read "object takes 10 seconds to hit the water" AND NOTHING ELSE AFTER THAT.

if the problem read:

"an object takes 10 seconds to hit the water. the body of water is 1000 feet deep. assume constant density of xx. what is the final velocity of the object."

then it damn sure would be zero. but that would be a pretty stupid question.

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So why even include 0m/s as one of the possible answers?